A character mentioned in a Bob Dylan song, no one knows who he is besides Bob Dylan himself. Evidence that no one but Dylan himself knows this can be found in the Counting Crows song "Mr. Jones" where the narrarator wants to be Bob Dylan to understand who this mysterious Mr Jones is.

Do you, Mr Jones
Now you see this one-eyed midget
Shouting the word "NOW"
And you say, "For what reason?"
And he says, "How?"
And you say, "What does this mean?"
And he screams back, "You're a cow
Give me some milk
Or else go home"
Because something is happening here
But you don't know what it is
Do you, Mister Jones